49 C.F.R. § 655.49 Refusal to submit to a drug or alcohol test.
Title 49 - Transportation
(a) Each employer shall require a covered employee to submit to a post-accident drug and alcohol test required under §655.44, a random drug and alcohol test required under §655.45, a reasonable suspicion drug and alcohol test required under §655.43, or a follow-up drug and alcohol test required under §655.47. No employer shall permit an employee who refuses to submit to such a test to perform or continue to perform safety-sensitive functions. (b) When an employee refuses to submit to a drug or alcohol test, the employer shall follow the procedures outlined in 49 CFR Part 40.
Title 49: Transportation
PART 655—PREVENTION OF ALCOHOL MISUSE AND PROHIBITED DRUG USE IN TRANSIT OPERATIONS
Subpart E—Types of Testing
§ 655.49 Refusal to submit to a drug or alcohol test.
